createMirror
Creates mirror of this repository on the given cache server host.
Cache servers relay traffic between Ouisync peers and also temporarily store data. They are useful when direct P2P connection fails (e.g. due to restrictive NAT) and also to allow syncing when the peers are not online at the same time (they still need to be online within ~24 hours of each other).
Requires the repository to be opened in write mode.